Grain-drill



-(NbModeL) I A; D. ALEXANDER.

GRAIN DRILL. I No.- 307,160. 'Patented Oct. 28, 1884.

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UNITED STATES PATENT OFFICE.

ALBERT D. ALEXANDER, OF LAWTON, MICHIGAN.

GRAIN-DRILL.

SPECIFICATION forming part of Letters Patent No. 307,160, dated October 28, 1884.

Application filed July 18, 1884. (No model.)

tially as hereinafter described, for tilting the teeth or shares in unison.

In the drawings, forming a part of this specification, Figure 1 is a side elevation with parts broken away and in section. Fig.2 is abroken top View and Fig. 3 a plan of a detached broken part.

A common form of frame is shown at B provided with an axle, E. wheels R, and grainbox 1?. A little more than one-half of the drill is here shown, Fig. 2, the parts at the left hand of the central tongue, S, being broken away, .but which are like the parts at the right hand of said tongue in a complete device. The share-bars c c, shares r r, and grain-tubes f f herein shown are the same as those shown in a former application by me filed July 11, 1884, Serial No. 137,418. While I prefer to use these specified parts in my drill, the present invention does not apply'to them necessarily, as specifically constructed, farther than that the share-bars are pivotally connected at their forward ends. On each side of the frame B are parallel oblique bars a a, pivotally connected at their rear ends with the frame B by means of a rigidly-secured bar, a, on each side of said frame. The forward ends of the bars a a are pivotally connected with a vertically-playing beam, d, by means of a rigidly'secured bar, it, at each end. of beam d. \Vith the vertically-playing beam d the forward ends of the share-bars are pivotally connected, the upper ones, 0, with the upper side of said beam, and the lower ones, 0, with the lower side. The means here shown for said pivotal connection are diagonal castings h, having a little space between their upper and lower contiguous ends,which extend alittle beyond the beam d, in which spaces the bars a c are pivoted, Fig. 3. By this means the oblique arms of the bars 0 a cross each other in vertical View, Fig. 2, thus utilizing space and getting more bars and shares in a given width frame. The frame Bis provided with a rocking bar, D, having bearings in the side beams and tongue of said frame. With the tongue is connected a ratchet-disk, o, and with the rocking bar D is rigidly connected a pawl-lever,i,the pawl thereof adapted to engage the ratchet. Lifting-levers F are rigidly secured to the rocking bar at each end and are pivotally connected with the vertically-playing beam (2 by means of pivotallyconnected rods k.

In the operation by swinging the pawl-lever forward or back the forward ends of the share-bars c c are raised or lowered, as the case may be, thus tilting all ofthe shares connected with the rear ends of said bars in uni s0n,setting their working ends farther forward or rearward, according to the desire of the operator in view of the condition of the soil.

- Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a grain-drill, the vertically-playing beam, in combination with pivotally-connecting sharebars, and meansfor raising and lowering said beam, whereby the shares are tilted in unison, substantially as set forth.

2. The combination, with the verticallyplaying beam, its oblique pivoted supportingbars, a rocking bar provided with a pawllever and with the end lifting-levers, and the pivoted rods connecting the latter with said beam, of shared bars the forward ends thereof pivotally connecting with the verticallyplaying beam, substantially as set forth.

3. Thepivotally-suspended vertically-playing beam provided with castings having spaces between their contiguous extended ends, in combination with shared bars pivotally connecting with said castings in said spaces, and means for raising and lowering said beam, substantially as set forth.

4. A grain drill consisting of a wheeled frame, a grain-box, avertically-playing beam, means for raising and lowering the same and looking it in given positions, share-bars pivotally connecting at their forward ends with said beam, and grain-tubes, all substantially as set forth.

In testimony of the foregoing I have hereunto subscribed my name in presence of two witnesses.

ALBERT D. ALEXANDER.

Witnesses:

HERBERT S. WILSON, Guns. '1. CHASE. 

